Flashcards in Human body Deck (24):
What protects the heart?
What are the four types of teeth?
Canines, molars, pre-molars and incisors
What are canine teeth used for?
For ripping and tearing food
What are molar teeth used for?
For chewing and grinding
What are pre-molar teeth used for?
For mild chewing and grinding
What are incisors used for?
For slicing and cutting
Why do teeth breakdown food?
To make it suitable for swallowing and digesting
Where are the molar teeth in the mouth?
At the back of the mouth
What would be the effect of a bad diet on your teeth?
They would become decayed and if not treated would eventually fall out
Why must food be broken down from large particles into tiny molecules?
So that it can pass through the small intestine into the blood.
What carries digested food around the body?
The digestive process is carried out by enzymes in digestive juices. Where are they made?
In the mouth, stomach, pancreas and liver
What do enzymes do?
They speed up chemical reactions in living organisms
What happens when we breathe in?
The muscles push the ribs upwards and outwards. The diaphragm moves down. The volume inside the chest rises. This causes air to rush into your lungs.
What happens to your body when we breathe out?
The muscles push the ribs downwards and inwards. The diaphragm moves up. The volume inside the chest decreases. This causes air to rush out your lungs.
Why do we need lungs to breathe
There's nowhere else for the air to go, so it's like storage
What makes us breathe?
Oxygen from the air
What do lungs do?
They bring in air and pass oxygen into our blood. Cells receive oxygen from our blood
What is the function of the heart?
To pump blood carrying oxygen and food around the body to all of our cells
Which blood cells carry oxygen around the body?
Red blood cells
What is the function of platelets?
To clot the blood when required
What do white blood cells do?
Protect the body from foreign particles
What is the yellow liquid part of blood called?